Imaging device, imaging module, electronic device, and imaging system
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsTakayuki Ikeda, Takahiro Fukutome
Life of this patent
Estimating the term…
Abstract
An imaging device connected to a neural network is provided. An imaging device having a neuron in a neural network includes a plurality of first pixels, a first circuit, a second circuit, and a third circuit. Each of the plurality of first pixels includes a photoelectric conversion element. The plurality of first pixels is electrically connected to the first circuit. The first circuit is electrically connected to the second circuit. The second circuit is electrically connected to the third circuit. Each of the plurality of first pixels generates an input signal of the neuron. The first circuit, the second circuit, and the third circuit function as the neuron. The third circuit includes an interface connected to the neural network.
Claims14
An imaging device comprising a plurality of circuits,
- wherein the plurality of circuits each comprises:
- a plurality of pixels each comprising a circuit configured to generate a first signal and a first operation circuit configured to generate a second signal by multiplying the first signal by a weight coefficient;
- and
- a second operation circuit configured to perform an arithmetic operation using a plurality of second signals output from the plurality of pixels,
- wherein the first operation circuit is configured to be supplied with a potential corresponding to the weight coefficient,
- wherein the second operation circuit is located below the plurality of pixels, and
- wherein in each of the plurality of circuits, the plurality of pixels are directly connected to the second operation circuit.
An imaging device comprising a plurality of pixels, each of the plurality of pixels comprising:
- a circuit configured to generate a first signal;
- and
- a first operation circuit configured to generate an output signal by multiplying the first signal by a weight coefficient,
- wherein the circuit configured to generate the first signal comprises a photoelectric conversion element and a transistor,
- wherein the first signal is in accordance with a signal output from the photoelectric conversion element,
- wherein the transistor is configured to control output of the first signal,
- wherein a second layer including the transistor is located over a first layer including the first operation circuit,
- wherein a third layer including the photoelectric conversion element is located over the second layer,
- wherein the first operation circuit is configured to be supplied with a potential corresponding to the weight coefficient, and
- wherein the first operation circuit is located below the circuit configured to generate a first signal.
Dependencies are inferred from the claim text.